The earth orbits the sun at a constant spin rate of 1 revolution per year. The...
The earth orbits the sun at a constant spin rate of 1 revolution per year. The dominant (nonzero) acceleration featured in this system is:
a. Tangential acceleration at
b. Angular acceleration
c. Radial (centripetal) acceleration ar
d. Both A and B.
e. All of the above accelerations are 0.
Homework Answers
c. Radial (centripetal) acceleration ar
The rate of spin is constant, hence the angular acceleration is constant and zero.
the tangential acceleration is directly proportional to angular acceleration , hence tangential acceleration is also constant and zero.
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The earth orbits the sun at a constant spin rate of 1 revolution
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The earth spins on its axis once a day and orbits the sun once a year (365 1/4 days). Determine the average angular velocity (in rad/s) of the earth as it (a) spins on its axis and (b) orbits the sun. In each case, take the positive direction for the angular displacement to be the direction of the earth's motion.
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a) From the definition of torque in terms of angular momentum,
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Rotation Homework 1 1.) Clearly explain the difference between rotation and a revolution. near speed called...
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Question 1 (a)What is the angular frequency of a satellite that orbits the Earth just above...
Question 1
(a)What is the angular frequency
of a satellite that orbits the Earth just above the surface?
Ignore air resistance . Radius of Earth is Re and
centripetal acceleration is ac = (v2)/R. The
acceleration at Earth's surface is a = g =
(GMe)/(Re2) where Me =
mass of Earth. Keep your answer in terms of G, Me,
Re.
(b) How long would it take you to fall through the center of the
Earth and come out the other...
The earth (of radius of 6371km) rotates on itself at a rate of one revolution every 24 hours and is titled by an angle of 23.5°. Let's assume that the earth is a perfect sphere, which allows us t...
The earth (of radius of 6371km) rotates on itself at a rate of one revolution every 24 hours and is titled by an angle of 23.5°. Let's assume that the earth is a perfect sphere, which allows us to consider a uniform circular motion 23.5 R equator Figure 1: Earth rotation Everybody on earth share the same time of rotation, but based on their location on the earth, they wil have different velocities. A person located in Hawaii, at an...
1 What is the Earth's orbital speed as it orbits the Sun. Take the Earth/Sun distance...
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Need help with 10 & 11. 10. The Earth completes one orbit around the Sun in...
Need help with 10 & 11.
10. The Earth completes one orbit around the Sun in 365.242 daya. Ansume a circular orbit of radiua 1.50 x 108 km. Caloulate the linear (not angular) apeed of the Earth in ita orbit. a. b. Caloulate the angular apeed of the Earth in ita orbit. Anawer in radiana per seoond. o. Caloulate the magnitude of the Earth'a centripetal acceleration a it revolvea around the Sun 11. Seienoe fotion ia filled with examplea of...
The earth (of radius of 6371km) rotates on itself at a rate of one revolution every 24 hours and is titled by an angle of 23.5°. Let's assume that the earth is a perfect sphere, which allows us t...
The earth (of radius of 6371km) rotates on itself at a rate of one revolution every 24 hours and is titled by an angle of 23.5°. Let's assume that the earth is a perfect sphere, which allows us to consider a uniform circular motion 23.5 R equator Figure 1: Earth rotation Everybody on earth share the same time of rotation, but based on their location on the earth, they wil have different velocities. A person located in Hawaii, at an...
10. The Earth completea one orbit around the Sun in 365.242 daya. Aaaume a ciroular orbit...
10. The Earth completea one orbit around the Sun in 365.242 daya. Aaaume a ciroular orbit of radiua 1.50 x 108 km. a. Calculate the linear (not angular) apeed of the Earth in ita orbit. b. Caloulate the angular apeed of the Earth in its orbit. Anawer in radiana per aecond. c. Caloulate the magnitude of the Earth'a centripetal acceleration aa it revolvea around the un. 11. Science fiotion ia filled with examplea of large apacecraft or apace atationa that...
A comet orbits the Sun and loses mass at a constant rate of
30,000kg/s. The only force acting on the comet is the gravitational
force.
a) From the definition of torque in terms of angular momentum,
torque=dL/dt, show that
dI/dt=-alphaI/omega (alpha= angular acceleration, omega=angular
velocity)
b) The quantity omega/omega(with a dot on it), where (omega with
a dot on it=domega/dt) is a natural time scale for the system's
change in angular frequency (to see this, think about the units).
Approximating...
003 10.0 points Earth orbits the sun once every 365.25 days. Find the average angular speed of Earth about the sun. Answer in units of rad/s. 004 (part 1 of 2) 10.0 points A disk with a radius of 0.1 m is spinning about its center with a constant angular speed of 10 rad/sec. What are the speed and magnitude of the acceleration of a bug clinging to the rim of the disk? 1. 1 m/s and 0 m/s2 (Disk...
Question 1
(a)What is the angular frequency
of a satellite that orbits the Earth just above the surface?
Ignore air resistance . Radius of Earth is Re and
centripetal acceleration is ac = (v2)/R. The
acceleration at Earth's surface is a = g =
(GMe)/(Re2) where Me =
mass of Earth. Keep your answer in terms of G, Me,
Re.
(b) How long would it take you to fall through the center of the
Earth and come out the other...
The earth (of radius of 6371km) rotates on itself at a rate of one revolution every 24 hours and is titled by an angle of 23.5°. Let's assume that the earth is a perfect sphere, which allows us to consider a uniform circular motion 23.5 R equator Figure 1: Earth rotation Everybody on earth share the same time of rotation, but based on their location on the earth, they wil have different velocities. A person located in Hawaii, at an...
1 What is the Earth's orbital speed as it orbits the Sun. Take the Earth/Sun distance to be 93 million miles (taking the Earth's orbit to be circular), the mass of the Earth to be 5.97 X 102 kg and the mass of the Sun to be 1.987 X 10*0 kg. Solve this problem using Newton's 2nd law directly 2. A 55.7 kg mass is lifted (at a constant velocity) from the ground to a vertical height of 1275 m....
Need help with 10 & 11.
10. The Earth completes one orbit around the Sun in 365.242 daya. Ansume a circular orbit of radiua 1.50 x 108 km. Caloulate the linear (not angular) apeed of the Earth in ita orbit. a. b. Caloulate the angular apeed of the Earth in ita orbit. Anawer in radiana per seoond. o. Caloulate the magnitude of the Earth'a centripetal acceleration a it revolvea around the Sun 11. Seienoe fotion ia filled with examplea of...
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10. The Earth completea one orbit around the Sun in 365.242 daya. Aaaume a ciroular orbit of radiua 1.50 x 108 km. a. Calculate the linear (not angular) apeed of the Earth in ita orbit. b. Caloulate the angular apeed of the Earth in its orbit. Anawer in radiana per aecond. c. Caloulate the magnitude of the Earth'a centripetal acceleration aa it revolvea around the un. 11. Science fiotion ia filled with examplea of large apacecraft or apace atationa that...
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